Magazine loader for air guns



Sept. 9, 1952 A. LAWRENCE 2,609,811

MAGAZINE LOADER FOR AIR GUNS Filed Dec. 5, 1948 COMPF QESSED AIR CYLINDER Figl 17 INVENTOR. ANDREW LAWRENCE m ATTORNEY.

Patented Sept. 9, 1952 UNITED STATES TENT FFICE- MAGAZINE LOADERFOR AIR GUNS Andrew Lawrence, New York,- N; Y., assign'or of one=half to Stephen E. Iiaszlo, New York, N. Y.

Apeiic'atwaoeefiiher s, 1948, Serial No. 655231 5" Claims.

This invention relates to magazine loaders for air-guns, and provides improvements therein.

The present invention provides a magazine loader for air-guns which holds a piuraniyor bullets at the breech-end or the gun, from which magazine bullets may be readily ied to the breech of the" gun for a success on of discharges. The invention further provides" such a magazine loader which is compact'and symmetrical; the diameter thereof may be approximately that of the cylinder in which air" for discharging the bullet is compressed. g

The invention further provides a magazine loader in which bullets are fed to a' position in line with the breech openihg from a position around and concentric with the bre'clr opening, and are protected from deformation during the feeding, the magazine loader comprising a plu-" rality of bullet carrying" sleeves which" envelopand protect the bullets" throughout the move= ments thereof from said position concentric" With the breech opening to the breech-opening.

The invention also provides a relatively simple and eifective' mechanism for ieedingjthe 5111- lets and positioning. them successivelyin'liriewith the breech-opening. It min-grammesemergenzine loader which may be combined with the breech-opening and closing mechanism;

One embodiment Of the invention is illustrated in the accompanying drawings;

Figure 1 is a transverse'sectiorial viewthrough the breech-end of an air-gun;

Figure 2 is a rear view of the partsshow-n in Fig. 1. i

Figure 3 is a cross section on the line 3 -4; Fig. 1. V

Figure 4 is a cross section on the line 4-4, Fig. 1. i

Referring to said drawings-and parueunny to Figure 1, barrel means are 'thereiri-shbwh in cluding a cylinder l within-whit? air for pro-' jecting the bullet is* compressed, a w hin which is arranged a spring ressea pistonnot shown); a barrel IEinthebreecI'if-efid'of which bullet X is held, and through" which" barrer zi the bullet is projected by compressedi air when the spring pressed piston is released} all ofwhich is v rell known; and, located at the rear end-of the cylinder [0, a breech piec'e M" having a breech-opening: 15 therein; The connectionto the cylinder may be by screw" threads- Fl; The barrel 12 projects partly into the" breechmpem ing" and the" breech-opening of somewhat the position in line with a larger diameter fit 2 v I that of the barrel l2, to provide for access of the air compressed in the cylinder 10 to the rear side of a bullet X in position in the breech-end of the barrel. The breech opening 15in the breech piece I4 is closed by a breech block 20 The breech block 20 has" an opening 2| thermwhieh-m the open position of the breech, rgisters' wi-ththebofe of barrel l'2. Threaded on breech-piece [4, as indicated at 23, is" acap 22, having a 1191c 24 therein in line with" the breech=opening l5; and through which bullets pass into the bfeclf-op'ening and into the rear end of the barrel; The breech block 20 is pivoted eccentrically ca thebree'ch-piece M, as by apin 26". A connection is providedforen' training; the breech block 20 with the rotation o' f ca 2 2-, so that the breech block is moved by the cap" tea-position toopen or close the breech piece-to the outside; Such a connection is advantageously provided by a cen or a spring" 30, attach'edatone end to the breech block, asindicated at 3'l, andhaving its' free convolution hearing frictional-1y against-the inside of the cap' 22'. Turning of the cap 2'2 si'multaneously turns the breech block 20 on its pivo't'l'fi t'o clhsethe breech pieceby moving opening 2| out o'f' register with barrel [2' and pressing the breech block against" the breech-piece M, or to" open the breech by reversing the operation-just described;

The mechanism heretofore describedmay be the same as that described in my'a'pplic'ation Se rial No. 650,771 filed February 28, 1946, novl 'Pat ent Numb er 2,;525-,6s9.

The magazine loader accordingto the present invention maybe, and preferably is;co'nnected to the barrel means'and: combined in part with'the breech mechanism: That-isthe cap 22 may be extended rearwardly and beprovide'd with a' cylindrical magazine means 33' for containing a plurality of bullets: The extension 33- is pr'efer ably of the same diameter as that of the cap 22. The cap 22, and likewise the cylindrical por: tion 33, are approximately the same diameter as that of the cylinder l0, and thereby the structure at the breech end of the gun is compact and Wiel'dy. The rear of the cylindrical magazine means 33 of the-magazine loader is closed by a" rotatable base plate 35; Wingpieces 31, 38 project fromthe rear of plate 35; and these may-be grasped" by the fingers and used in rotating the plate 35 Within the magazine means 3'31there'is*provided a series of pockets: 40, surrounding andand protected by the sleeves 45. The plate 35 has on its inside a segment-shaped projection ll having a continuous surface 41' on which a plurality of the bullet carrying sleeves 45 rest, and

which defines a guide Way and a path for the sleeve and holds the sleeves bearing thereon seated within the pockets 40. The plate 35 also has thereon a guiding cam member 50 which engages the bullet carrying sleeves 45 surrounding the breech opening |5 to move them one by one from the concentrically arranged pockets 40 inwardly to a position in line with the breech opening l5. For holding a bullet carrying sleeve in alinement with the breech opening I5, the surface of the guiding'member 41 is provided adjacent to the breech opening with a recess 52, and the guiding cam member 55 also has mounted thereon a spring pressed pad 54 which presses a bullet carrying sleeve 45 into the recess 52.. A portion 56 of the cam member 53 acts to guide a bullet carrying sleeve 45 from a position in line with the breech opening l5 back into a pocket 40 in the magazine means between two projections 40. Detent means may be and preferably are provided for stopping and impositively holding the plate 35 in successive positions corresponding to the feeding of a bullet carrying sleeve 45 from a concentric position to a position in line with the breech opening l5. Said means may be conveniently in the form of a spring pressed pin 60 and a series of radial notches'fiz in the body of the magazine. Conveniently the notches 62 and also the pockets 40, are formed in an annular member 65 arranged within the cylindrical magazine means 33 of the magazine, and held against movement therein by a press fit. The rotatable plate 35 may be rotatably held within the cylindrical portion 33 of the magazine in suitable manner, as by a split ring 51 fitting within a recess 68 in the cylindrical portion 33. V

The rotatable plate 35 is provided with a loading aperture 10, and may also be provided with central aperture 12 in line with the breech opening l5 through which bullets may be loaded directly into the breech end of the barrel l2. The rotatable plate 35 may also be provided with a series of inspection openings spaced like the pockets 40, and through which the presence or absence of bullets in the bullet carrying sleeves may be observed.

Operation A bullet X being discharged from the breech end of the barrel l2, the breech cap 22 is turned a part of a revolution to bring the opening 2| in the breech block to a position in line with a breech opening l5, thereby opening the breech, as shown in Fig. 4. The rotation of the cap 22, against the inner side of which the spring 30 attached to the breech presses, acts to turn the breech block on its pivot on the breech piece M to and from the breech closing position; and it is to be noted that in turning the breech piece M to closing position, the breech cap 22 is drawn the bullet carrying sleeve 45 in pocket 52.

by the threads 23 toward the breech piece [4 and presses the breech block 2|] tightly against the breech piece i4.

With the breech open, the plate 35 is turned one step by grasping the wings 31, 38. This one step movement of the magazine plate 35 moves the guiding member 4'! one step forward, and also moves the guiding cam member 50 into position to force out of a pocket 40 a bullet carrying sleeve 35 held by a transporting projection Jail; and this movement of the bullet carrying sleeve out of its pocket forces a bullet carrying sleeve ahead of it to move into the pocket 52 in line with the breech opening l5, (and with the opening 2| in the breech block). The spring; operated means 54, as heretofore described, holds. In.

' this position the gun is pointed downwardly and so made that they will'jpasslinto thebarrel I2 but will not slidev through the same by gravity.

As heretofore described, the stepwise movement of the magazinejplate 35 is controlled by the impositive engagementof the spring pressed pin successively in the notchesBZ.

The breech is then closedsby moving the breech cap 22 in the direction oppositeto that in which it was moved in opening the breech. fThiS movement of the breech cap turns the breech block 26 on its pivot 26 to aposition'closing thebreech (see dotted linesFig. '4), and the turning of the breech cap 22, by reason of the threaded engagement with the breech piece I4, also acts to press the breech blockjjllgtightly'against the breech piece M, as heretofore described; ,The air gun is now ready for discharge, the discharge, being effected by the release of the spring pressed piston within the. cylinder 1.. The air compressed in the cylinder acts against the rear of the bullet X in the rear end of the barrel l2, and projects the bullet through and. from the barrel.

For a second shot',' the breech piece 2|] is turned to breech opening position, the magazine plate 35 is turned another step, and another bullet carrying sleeve is thereby moved into pocket 52 to position the bullet X therein in line with the breech opening l5 and the opening 2| in the breech block 20, as heretofore described. The sleeve 45 entering pocket 52, forces the empty sleeve in said pocket onto cam 56, and from there into a pocket 40.

scribed.

What is claimed is:

I. In a gun having a barrel means with a breech Opening in its rear end arranged coaxially with said barrel means, a magazine loader mounted at the rear end ,of the barrel means and comprising in combination, guide means including a projection arranged adjacent to said breech opening and having a surface portion serving as a guide way for bullets, a portion of 's'aidguide way adjacent to said breech opening being recessed in such manner that a bullet passing along said guide way and abutting against said recessed portion isaligned with said breech opening;-spring operatedmeans mounted on said guide means opposite to said recessed portion of said guide way and adapted to urge" a bulletpassing along said guide way against said recessed portion, and magazine means associated with said guide means for relative rotation and having at least one transporting projection projecting inwardly totive to said'guide means along said guide way so that? said bullets breech opening. I 21 In a: gun having a barrel means with a breech opening at its, rear, end arranged coaxially withlsaid barrel means, a. magazine loadermounted at the rear end of. the barrel means and comprising, in: combination, guide. means including a guiding member located on, one side ofthe breech opening and, having a surface portion parallel to the axis of the breech opening and formed with a recess adjacent to the breech openingand shaped insuchmanner that a bullet located insaid recess isalignedwith thebreech opening, said guide means further including at least one guiding cam member located on the opposite side of the breech opening and having a surface portion facing said surface portion of the inner guiding member whereby between said guiding member and said guiding cam member a bullet path is formed crossing the axis of said breech opening; spring operated means secured to said guiding cam member opposite to said recess for urging a bullet into said recess; and magazine means associated with said guide means for relative rotation and having a plurality of transporting projections adapted to engage bullets located on said bullet path so as to effect movement of the same relative to said guide means along said bullet path to said recess and into alignment with said breech opening whenever a relative movement between said magazine means and said guide means takes place.

3. In a gun having a barrel means with a breech opening at its rear end arranged coaxially with said barrel means, a magazine loader mounted at the rear end of the barrel means and comprising, in combination, magazine means including an annular member provided on its inner surface with a plurality of transporting projections defining pockets; a plurality of bullet carrying sleeves, each bullet carrying sleeve engaged between two adjacent transporting projections; guide means associated with said magazine means for relative rotation and including a guiding member located within said annular member on one side of the breech opening and having a continuous surface portion parallel to the axis of the breech opening and engaging said bullet carrying sleeves and defining a path for the same, said continuous surface portion being formed with a recess adjacent to said breech opening shaped in suchmanner that a bullet carrying sleeve located in said recess is aligned with the breech opening, said guide means further including a guiding cam member located on the opposite side of the breech opening and having a guiding cam face defining with a corresponding opposite portion of said continuous surface portion of said inner guiding member a guide way for bullet carrying sleeves, said guiding cam member engaging during relative rotation of said guide means and said magazine means bullet carrying sleeves located between two adjacent transporting projections and guiding the same past said recess into a pocket between two adjacent transporting projections; and spring operated means secured to said guiding cam member opposite to said recess and adapted to urge a consecutively reach said 6 bullet carrying sleeve into said recess and into al smn ntw t sa d cch o ni -4.--In -r-a gun having; a, barrel means with a br e en in a i ere r e er ng d coaxielly with said-barrelmeans and comprising, in comnation, magazine means including an annular member; provided on its inner surface with a plurality of transporting projections defining pockets; a plurality of bullet carryingsleeves open on -;both; ends, ,each bullet carrying sleeve engaged between two adjacent transporting projections; guide ,meansassociated with, said magazinemeansforrelative rotation and including a guiding member located within said annular memberon one side; of the breech opening and having a continuous surface portion parallel to the axis ofthe breech; opening and engaging said bullet; carrying sleeves" and defining a path for the same, said continuous surface portion being formed with a recess adjacent to said breech opening shaped in such manner that a bullet carrying sleeve located in said recess is aligned with the breech opening, said guide means further including a guiding cam member located on the opposite side of the breech opening and having a guiding cam face defining with a corresponding opposite portion of said continuous surface portion of said inner guiding member a guide way for bullet carrying sleeves, said guiding cam member engaging during relative rotation of said guide means and said magazine means bullet carrying sleeves located between two adjacent transporting projections and guiding the same past said recess into a pocket between two adjacent transporting projections; spring operated means secured to said guiding cam member opposite to said recess and adapted to urge a bullet carrying sleeve into said recess and into alignment with said breech opening; and a base plate secured to said guide means and extending transversally to the axis of the breech opening and having a central aperture coaxial with said breech opening, and another aperture adjacent thereto and opening into said path for bullet carrying sleeves and serving for loading bullets into said bullet carrying sleeves, said base plate being further formed with a, plurality of spaced openings arranged along said path for bullet carrying sleeves for observing the same.

5. In a gun having a barrel means with a breech opening at its rear end arranged coaxially with said barrel means, a magazine loader mounted at the rear end of the barrel means and comprising, in combination, magazine means including an annular member provided on its inner surface with a plurality of transporting projections defining pockets; a plurality of bullet carrying sleeves, each bullet carrying sleeve engaged between two adjacent transporting projections; guide means associated with said magazine means for relative rotation and including a guiding member located within said annular member on one side of the breech opening and having a continuous surface portion parallel to the axis of the breech opening and engaging said bullet carrying sleeves and defining a path for the same, said continuous surface portion being formed with a recess adjacent to said breech opening shaped in such manner that a bullet carrying sleeve located in said recess is aligned with the breech opening, said guide means further including a guiding cam member located on the opposite side of the breech opening and having a guiding cam face defining with a corresponding opposite portion of said continuous surface portion of said 7 inner guiding member a guide way for bullet carrying sleeves, said guiding cam member engaging during relative rotation of said guide means and said magazine means bullet carryin sleeves located between two adjacent transporting projections and guiding the same past said recess into a pocket between two adjacent transporting projectionsj spring operated means secured to said guiding oam'member opposite to said recess and adapted to urge a bullet carrying sleeve into said recess'and into alignment with said breech opening; and spring operated detent means arranged between said i'n'agaiine means and said guiding means for holding the same,

when rotated relatively to each other, in a plu- 15 rality of successive positions in which a bullet carrying sleeve is located in said recess.

'- ANDREW LAWRENCE.

8 REFERENCES CITED The following references are of record in the file of this patent: W

' UNITED STATES PATENTS Great Britain 1894 

